For sale is a Vintage Airguide Marine Jeweled Contralog Speedometer - Model 712-B - with box and instructions. Measures 5" across the back, 4" across the face and about 2" thick. Please note about condition: The unit is unused but does have wear from storage conditions over the years. There are some brown spots on the face and a bit of a fogginess to the glass. Includes 3 screws and instructions. There is a bit of wear on the chrome. It is untested, so sold as-is. Please see all photos. Thank you for looking! Purchase with confidence as a 30 day return period is offered on all items. Please check out my store for more unique items!